Robust DataComm rdc232hub-dv-4p-dd-f1 Hub/Repeater Guia De Especificação
Model: rdc232hub
Isolated 3-way RS-232 hub
The rdc232hub allows the interconnection of three RS-232 devices,
complete with full 4-port 2.5kv optical/galvanic isolation. Each port
is fully isolated (with floating ground) with reference to the other
data ports and the power supply.
The rdc232hub operates either in Hub or Master-Slave mode. As a
hub, any one device can communicate freely with the other two
because data received on any one port is echoed out through the
other two. In Master-Slave mode, any data received by port C
("Master") is echoed out through both port A and B ("Slaves"). Data
received on port A and B is only echoed out through port C
("Master") only. Furthermore, all ports support the forwarding of
DTR and DSR signals as well.
500-watt voltage transient suppressor diodes protect the rdc232hub
from normal mode surges, while the full galvanic isolation protects
the rdc232hub from common mode surges.
Isolation, industrial design, small size, DIN rail mount, user
indication, and DC supply make the rdc232hub a very engineer-
friendly device for your industrial data communication system.
complete with full 4-port 2.5kv optical/galvanic isolation. Each port
is fully isolated (with floating ground) with reference to the other
data ports and the power supply.
The rdc232hub operates either in Hub or Master-Slave mode. As a
hub, any one device can communicate freely with the other two
because data received on any one port is echoed out through the
other two. In Master-Slave mode, any data received by port C
("Master") is echoed out through both port A and B ("Slaves"). Data
received on port A and B is only echoed out through port C
("Master") only. Furthermore, all ports support the forwarding of
DTR and DSR signals as well.
500-watt voltage transient suppressor diodes protect the rdc232hub
from normal mode surges, while the full galvanic isolation protects
the rdc232hub from common mode surges.
Isolation, industrial design, small size, DIN rail mount, user
indication, and DC supply make the rdc232hub a very engineer-
friendly device for your industrial data communication system.
RS-232 port Description:
Port Type ...........................…. EIA/RS-232
Voltage Levels ....................... ±9v DC
Permitted Surge ..................... ±25v DC
Surge Diodes Installed .......... ±15v, 500-watt
Voltage Levels ....................... ±9v DC
Permitted Surge ..................... ±25v DC
Surge Diodes Installed .......... ±15v, 500-watt
Isolation (ISO/IEC 9549):
Between
All RS-232 ports ………….….. 2500v (optical, 5kV test)
Power & RS-232 Ports …....… 2500v (galvanic, 3kV test)
Conformal Coating ................. (optional) 5000v spec
All RS-232 ports ………….….. 2500v (optical, 5kV test)
Power & RS-232 Ports …....… 2500v (galvanic, 3kV test)
Conformal Coating ................. (optional) 5000v spec
Power Supply Options:
9v to 36 Vdc (1.5 watt max)... 12v or 24v including batteries
9v to 36 Vac (1.5 watt max).…Unregulated AC sources
9v to 36 Vac (1.5 watt max).…Unregulated AC sources
5v DC +/- 5% (4.75-5.25v)...... 5v for OEM integration
User Indication ....................... Green LED for power status
User Indication ....................... Green LED for power status
Communication:
Max Speed ............................ 115kbps , no config required
Character Setting ................... Transparent, no config required
Duplex / Direction .................. Automatic, no RTS/CTS required
User Indication ....................... Yellow LED for each Receive Signal
Maximum Bus Length ............ 15m per EIA-232
Character Setting ................... Transparent, no config required
Duplex / Direction .................. Automatic, no RTS/CTS required
User Indication ....................... Yellow LED for each Receive Signal
Maximum Bus Length ............ 15m per EIA-232
Environmental:
Ambient operating temperature… -20C to + 65C
Ambient storage temperature…… -40C to +100C
Relative Humidity..................…… 10 to 95% RH, non condensing
Casing.……………………………. good fungus & termite
Ambient storage temperature…… -40C to +100C
Relative Humidity..................…… 10 to 95% RH, non condensing
Casing.……………………………. good fungus & termite
resistance; self-extinguishing.
Weight .................................……. 130g.
Terminal Capacity ................…… 2.5mm strand (12 AWG)
Terminal Capacity ................…… 2.5mm strand (12 AWG)
4.0mm solid (12 AWG)
Mounting Rail .........................…. DIN EN 50022
(35mm symmetrical)
DIN EN 50025
(32mm asymmetrical)
(Note: Style DIN 50022 works best)
Copyright © 1997 Robust DataComm Pte Ltd
(Version 1.1) Specifications subject to change without notice
Block Diagram
Application Details:
One RS-232 Host has 2 RS-232 slaves on single port.
Two RS-232 Hosts share single RS-232 Slave (only ONE host can
talk to slave at one time – rdc232hub does NOT arbitrate)
talk to slave at one time – rdc232hub does NOT arbitrate)
Order Information:
Example: model rdc232hub-dv-4p-dd is an “Isolated 3-way RS-232
Hub, DIN-Rail Mount, 9-36vDC Supply, Full 4-of-4 Ground Isolation,
all with 9-pin D-Shell.”
Hub, DIN-Rail Mount, 9-36vDC Supply, Full 4-of-4 Ground Isolation,
all with 9-pin D-Shell.”
Mechanical Dimensions: mm (inches)
www.robustdc.com
Rdc232hub
Input Power Supply (Select One)
dv
9 to 36 Vdc, 1.5 watt (63mA@24v)
av
9 to 36 Vac 1.5 watt (63mA@24v)
5v
5vDC +/- 5% (260mA max)
Ground Isolation
4p
Full 4-of-4 Ground Isolation
Connectors
dd
All 9-pin D-Shell
Other Options (none required)
fc
Conformal Coating (+5000v)
Logic
Unit
TXD
RXD
DTR
DSR
DTR
DSR
Port C
PWR
Power Section
with 3 x DC-DC
Converters
with 3 x DC-DC
Converters
TXD
RXD
DTR
DSR
DTR
DSR
Port A
TXD
RXD
DTR
DSR
DTR
DSR
Port B
PWR
PWR